In a ruined and toxic future, thousands live in a giant silo deep underground. After its sheriff breaks a cardinal rule and residents die mysteriously, engineer Juliette starts to uncover shocking secrets and the truth about the silo.
Where to watch
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Apple TV
see all options Availability data: JustWatch
- Seasons
- 4
- Episodes aired
- 30
- Latest aired
- S03E10
- Total runtime
- 1d 2h
Timeline when each season aired
- Season 1 May 2023 – June 2023 10 episodes
- Season 2 November 2024 – January 2025 10 episodes
- Season 3 July 2026 – September 2026 10 episodes
- Season 4 July 2027 1 episode
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S01E01 Freedom Day
May 4 · 62min find the promo
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Sheriff Becker's plans for the future are thrown off course after his wife meets a hacker with information about the silo.
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S01E02 Holston's Pick
May 4 · 52min find the promo
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Juliette, an engineer, pieces together what might have led to a co-worker's mysterious death.
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S01E03 Machines
May 11 · 66min find the promo
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In her hunt for a new sheriff, Mayor Jahns clashes with Bernard. Juliette strikes a deal to keep the generator running.
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S01E04 Truth
May 18 · 49min find the promo
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Juliette tries gaining the trust of Deputy Marnes as they work to uncover the truth about recent tragedies.
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S01E05 The Janitor's Boy
May 25 · 54min find the promo
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Sims appoints Billings as chief deputy to keep tabs on Juliette, whose efforts to solve two murders lead to a showdown.
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S01E06 The Relic
June 1 · 55min find the promo
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During her investigation, Juliette uncovers disturbing secrets about someone she thought she knew.
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S01E07 The Flamekeepers
June 8 · 51min find the promo
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Bernard seeks Juliette's cooperation as he grows increasingly concerned about the silo's security. Juliette asks her father for a favor.
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S01E08 Hanna
June 15 · 48min find the promo
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New information causes Juliette to see her family's past differently—and she finally gains access to the silo's biggest secrets.
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S01E09 The Getaway
June 22 · 48min find the promo
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Racked with guilt, Billings sets off on a personal mission, only to discover a mind-blowing clue from Juliette.
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S01E10 Outside
June 29 · 49min find the promo
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Juliette's fate seems sealed when certain truths finally come to light.